JP2020135384A - Display device - Google Patents

Abstract

To allow a user to easily understand the details of character strings included in a scroll image even when the image is scrolled at a fast speed.SOLUTION: A control unit 10 causes a display unit 15 to display a part of a first image 40 in a display area 15A. When receiving a scroll operation in a vertical direction B through a touch panel 16A, the control unit 10 calculates an operation speed V1, and when the operation speed V1 is equal to or less than a first speed, the control unit 10 causes the display unit 15 to scroll the first image 40. When the operation speed V1 exceeds the first speed, the control unit 10 causes the display unit 15 to scroll second images 70A, 70B.SELECTED DRAWING: Figure 2A

Description

The present invention relates to a display device, and more particularly to a technique for performing scrolling of a display image.

A technique for scrolling a display image in response to a scroll operation on the display image is known. For example, Patent Document 1 discloses a technique for stopping scrolling at a position marked in advance when scrolling a list displayed on a display unit.

In Patent Document 2, among a plurality of items listed in the list, items that may have been overlooked by the user during past scrolling are specified, and the specified items are set to the speed specified by the scroll operation. Discloses techniques for scrolling at different speeds.

Japanese Unexamined Patent Publication No. 2013-114338 International Publication No. 2015/129327

When scrolling an image containing a character string composed of multiple characters arranged in a direction different from the scrolling direction, if the scrolling speed is high, the user cannot easily follow the contents of the character string. There is a problem that the contents of the character string are difficult to understand.

The techniques disclosed in Patent Document 1 and Patent Document 2 merely stop scrolling or slow down the scrolling speed, and cannot solve the above-mentioned problems.

The present invention has been made in view of the above circumstances, and makes it possible for the user to easily understand the contents of the character string contained in the scroll image even when the scroll speed is high. The purpose.

The image forming apparatus according to one aspect of the present invention includes a display unit, a touch panel, and a control unit. The control unit causes the display unit to display a part of the first image including a plurality of items arranged along the predetermined first direction in the predetermined display area. Each of the plurality of items included in the first image includes a character string composed of a plurality of characters arranged along a second direction orthogonal to the first direction. When the control unit receives the scroll operation in the first direction via the touch panel, the control unit calculates the speed of the scroll operation, and when the calculated speed is equal to or less than the predetermined first speed, the control unit transmits the display unit. , When the first image is scrolled in the display area and the calculated speed exceeds the predetermined first speed, a plurality of items arranged along the second direction in the display area with respect to the display unit. Scroll the second image containing. Each of the plurality of items included in the second image includes a character string composed of a plurality of characters arranged along the first direction.

According to the present invention, when the scroll operation speed exceeds the first speed, that is, when the scroll speed is high, the scroll operation is composed of a plurality of characters arranged along the first direction which is the scroll operation direction. Since the second image including the character string is scrolled, the user scrolls the first image including the character string composed of a plurality of characters arranged along the second direction different from the scroll operation direction. It is easier to follow the contents of the character string visually than when it is done. Therefore, the user can easily understand the content of the character string contained in the scroll image even when the scroll speed is high.

It is a block diagram which shows the internal structure of the image forming apparatus which concerns on 1st Embodiment of this invention. It is a flowchart which shows the display change processing. It is a flowchart which shows the 2nd image generation processing. It is a figure which shows an example of a home screen. It is a figure which shows an example of the 1st image. It is a figure which shows an example of a display area. It is a figure which shows an example of the display mode of the 1st image. It is a figure which shows an example of the 2nd image. It is a figure which shows an example of the scrolling mode of a combined image. It is a flowchart which shows another example of the 2nd image generation processing. It is a figure which shows an example of the scrolling mode of a 2nd image. It is a figure which shows another example of the scrolling mode of a 2nd image.

(First Embodiment)
Hereinafter, the image forming apparatus according to the first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing an internal configuration of an image forming apparatus according to a first embodiment of the present invention. With reference to FIG. 1, the image forming apparatus 1 is an example of a display apparatus within the scope of claims.

The image forming apparatus 1 is a multifunction device having a plurality of functions such as a facsimile function, a copy function, a printer function, and a scanner function. The image forming apparatus 1 includes a control unit 100. The control unit 100 includes a processor, a RAM (Random Access Memory), a ROM (Read Only Memory), and the like. The processor is, for example, a CPU (Central Processing Unit), an MPU (Micro Processing Unit), an ASIC (Application Specific Integrated Circuit), or the like.

The control unit 100 functions as a control unit 10 when a control program stored in a built-in ROM or HDD (Hard Disk Drive) 19 is executed by the above processor.

The control unit 10 may be configured to be operable by a hard circuit regardless of the operation based on the control program, or may be configured to be realized by two or more control units.

The control unit 100 includes an image reading unit 11, an image forming unit 12, a fixing unit 13, a paper feeding unit 14, a display unit 15, an operation unit 16, an image processing unit 17, an image memory 18, HDD 19, a facsimile communication unit 20, and communication. It is electrically connected to the unit 21 and the like.

The control unit 10 controls the overall control of the image forming apparatus 1. More specifically, the control unit 10 controls the operation of each unit of the image forming apparatus 1 and communication with an information processing apparatus 22 such as a PC (Personal Computer) or a mail server connected via a network.

The image reading unit 11 is an ADF (Auto Document Feeder) including a document conveying unit that conveys a document and a scanner that optically reads the document conveyed by the document conveying unit or the document placed on the platen glass. Is. The image reading unit 11 irradiates the document with the light irradiation unit, and receives the reflected light by the CCD (Charge-Coupled Device) sensor to read the document and generate image data.

The image forming unit 12 includes a photoconductor drum, a charging device, an exposure device, a developing device, and a transfer device. The image forming unit 12 forms an image composed of a toner image on the recording paper supplied from the feeding unit 14 based on the image data or the like generated by the image reading unit 11.

The fixing unit 13 fixes the toner image on the recording paper by heating and pressurizing the recording paper on which the toner image is formed on the surface by the image forming unit 12. The recording paper on which the toner image is fixed by the fixing unit 13 is discharged to the output tray.

The paper feeding unit 14 pulls out the recording paper stored in the paper cassette or the recording paper placed on the bypass tray one by one by a pickup roller (not shown) and sends it out to the image forming unit 12.

The display unit 15 is a display device composed of a liquid crystal display or the like. The display unit 15 displays various screens related to various functions that can be executed by the image forming apparatus 1.

The operation unit 16 includes a touch panel 16A arranged so as to overlap the display unit 15. The operation unit 16 also includes a plurality of hard keys including a start key and the like for instructing the start of execution of various functions. The user inputs instructions about various functions that can be executed by the image forming apparatus 1 via the operation unit 16.

When the user performs a scroll operation such as a flick operation or a swipe operation on the image displayed on the display unit 15, the touch panel 16A is displayed at the first position where the user's finger first contacts the image, and the user's Detects the second position where the finger is away from the image.

The image processing unit 17 executes image processing on the image data generated by the image reading unit 11 as necessary.

The image memory 18 includes an area for temporarily storing image data to be printed generated by the image reading unit 11.

The HDD 19 is a large-capacity storage device that stores various data including image data generated by the image reading unit 11. The HDD 19 stores various control programs for realizing the general operation of the image forming apparatus 1.

The HDD 19 stores a display change program for executing the display change process according to the present embodiment. The processor operates according to the display change program, and as a control unit 10, executes the display change process. The display change program shall be included in the above control program.

The HDD 19 associates the names of a plurality of registrants registered in advance with the e-mail addresses and stores them in advance as address book data. Here, it is assumed that the address book data includes information about 10 registrants. The user can send an e-mail to the e-mail address stored in the address book data by using the transmission function of the image forming apparatus 1.

The facsimile communication unit 20 connects to a public line and transmits / receives image data via the public line.

The communication unit 21 includes a communication module such as a LAN (Local Area Network) board. The image forming apparatus 1 performs data communication with the information processing apparatus 22 on the network via the communication unit 21.

A power supply (not shown) is connected to each part of the image forming apparatus 1, and each part of the image forming apparatus 1 operates by supplying electric power from this power source.

[motion]
FIG. 2A is a flowchart showing the display change process. Hereinafter, the control structure of the display change program executed by the image forming apparatus 1 in order to execute the display changing process will be described together with the operation of the image forming apparatus 1. The display change program is executed by the control unit 10 when an instruction for selecting an address book function is input by the user via the touch panel 16A.

When the power of the image forming apparatus 1 is turned on, the control unit 10 causes the display unit 15 to display a home screen for selecting one of a plurality of functions that can be executed by the image forming apparatus 1.

FIG. 3 is a diagram showing an example of a home screen. With reference to FIG. 3, the home screen 30 includes, as softkeys, a key 32 for selecting a transmission function, a key 34 for selecting an address book function, and the like.

It is assumed that the user confirms the home screen 30 and touches the key 34. When a touch operation on the key 34 is detected via the touch panel 16A with reference to FIG. 2A, the control unit 10 generates a first image based on the address book data stored in the HDD 19 (step S10).

FIG. 4 is a diagram showing an example of the first image. With reference to FIG. 4, the first image 40 includes ten items 42A-42J. Items 42A to 42J each include a character string indicating the name of any one of the 10 registrants indicated by the address book data. The character strings included in the items 42A to 42J are represented by horizontal writing, and are composed of a plurality of characters arranged along the horizontal direction A.

In the first image 40, the items 42A to 42J are arranged along the vertical direction B orthogonal to the horizontal direction A. Items 42A to 42J are arranged in this order so that the character strings included in each of the items 42A to 42J are arranged in the order of the Japanese syllabary. The vertical direction B is an example of the first direction within the scope of the patent claim. The lateral direction A is an example of the second direction in the claims.

It is assumed that the character strings included in the items 42A to 42D and the items 42F to 42J are composed of four characters. It is assumed that the character string included in the item 42E is composed of three characters.

The control unit 10 generates the first image 40 so that the size of the characters included in the items 42A to 42J becomes a predetermined size. Here, 15 pixels will be used as an example of a predetermined size.

After the generation of the first image 40, the control unit 10 causes the display unit 15 to display a part of the first image 40 in a predetermined display area (step S11). After displaying the first image 40, the control unit 10 waits until the scroll operation is accepted (NO in step S12).

FIG. 5 is a diagram showing an example of a display area. With reference to FIG. 5, the display area 15A is a preset area as an area for displaying the first image 40. In the display area 15A, the length L1 in the horizontal direction A is set to be larger than the length L2 in the vertical direction B.

Here, it is assumed that the length L1 is set in advance so as to be twice the length L2. It is assumed that the length L2 is a length corresponding to four characters having a size of 15 pixels. Therefore, the length L1 is a length corresponding to eight characters having a size of 15 pixels.

The maximum number of characters constituting each of the character strings included in the items 42A to 42J is four, which is the number of characters that can be accommodated within the length L1. Therefore, the control unit 10 generates the first image 40 so that the length of the first image 40 in the horizontal direction A is the same as the length L1 of the display area 15A in the horizontal direction A.

As described above, the first image 40 is generated so that the size of the characters included in the first image 40 is 15 pixels. In this case, the control unit 10 cannot display all of the ten items 42A to 42J in the display area 15A at once. Therefore, in the display area 15A, four items of the items 42A to 42J corresponding to the number of characters that can be accommodated in the length L2 are displayed.

FIG. 6 is a diagram showing an example of a display mode of the first image. In this case, in the display area 15A, four items 42A to 42D, which are some items of the items 42A to 42J, are displayed as a part of the first image 40. As described above, in the first image 40, the number of items that can be displayed at one time in the display area 15A (hereinafter referred to as "the number of first items") is "4".

The user confirmed the items 42A to 42D displayed in the display area 15A, and flicked the first image 40 in the vertical direction B toward the first lined item 42A in the upward direction. It shall be. Hereinafter, the direction toward the first lined item is referred to as an upward direction, and the direction toward the last lined item is referred to as a downward direction.

When the flick operation is detected by the touch panel 16A, the control unit 10 determines that the scroll operation has been accepted (YES in step S12), and the speed of the scroll operation in the vertical direction B (hereinafter, referred to as "operation speed"). .) Calculate V1 (step S13).

Specifically, the control unit 10 calculates the distance from the first position to the second position based on the first position and the second position detected by the touch panel 16A, and the calculated distance and the user's finger are used. The operation speed V1 is calculated based on the time from the contact with the image displayed on the display unit 15 (in this case, the first image 40) to the separation.

After calculating the operating speed V1, the control unit 10 determines whether or not the calculated operating speed V1 exceeds a predetermined first speed (step S14). The first speed is not particularly limited as long as it is a speed predetermined by the user or the like. Here, as the first speed, it is assumed that the speed at which all of the plurality of items displayed in the display area 15A are replaced twice by the scroll executed in response to one scroll operation is set. To do.

(1) When the operation speed is equal to or lower than the first speed The user shall perform a slow flick operation in order to display the desired item 42F in the display area 15A. In this case, the control unit 10 determines that the operation speed V1 is equal to or lower than the first speed (NO in step S14), and causes the display unit 15 to scroll the first image 40 in the display area 15A (step S15). ).

Specifically, the control unit 10 scrolls the first image 40 toward the display unit 15 in the upward direction, which is the direction of the flick operation, according to the display speed V2 set according to the operation speed V1.

When the movement amount of the first image 40 reaches the scroll amount set according to the display speed V2 or the distance from the first position to the second position, the control unit 10 ends the scrolling of the first image 40. .. It is assumed that items 42C to 42F are displayed in the display area 15A at the end of the scrolling.

The control unit 10 determines whether or not a scroll operation has been accepted while scrolling the first image 40 (step S16). When the user confirms that the desired item 42F is displayed in the display area 15A, the user does not perform the flick operation again. Therefore, the scroll operation is not detected by the touch panel 16A while the first image 40 is scrolling.

The control unit 10 determines that the scroll operation is not accepted during the scrolling of the first image 40 (NO in step S16), and returns to the process of step S12.

On the other hand, if the user performs the flick operation on the first image 40 again while scrolling the first image 40, the control unit 10 determines that the scroll operation has been accepted (YES in step S16), and the process in step S14. Return to.

(2) When the operation speed exceeds the first speed It is assumed that the user has performed a quick flick operation in order to display the desired item 42J in the display area 15A. In this case, the control unit 10 determines that the operation speed V1 exceeds the first speed (YES in step S14), and determines whether or not the second image is generated (step S17).

In this case, the control unit 10 determines that the second image has not been generated (NO in step S17), executes the second image generation process, and based on the address book data stored in the HDD 19. , A second image is generated (step S18).

FIG. 7 is a diagram showing an example of the second image. With reference to FIG. 7, the second image 70A includes items 72A to 72H arranged along the lateral direction A. The second image 70B includes items 72I and 72J arranged along the lateral direction A. The second image 70A and the second image 70B are combined in this order. Hereinafter, the image in which the second image 70A and the second image 70B are combined is referred to as a combined image 73.

Each of the items 72A to 72J corresponds to each of the items 42A to 42J included in the first image 40 in this order. That is, the content of the character string included in each of the items 72A to 72J is the same as the content of the character string included in each of the items 42A to 42J.

The character strings included in the items 72A to 72J are represented by vertical writing, and are composed of a plurality of characters arranged along the vertical direction B. Hereinafter, the second image generation process for generating the second images 70A and 70B will be specifically described.

[Second image generation process]
FIG. 2B is a flowchart showing the second image generation process. With reference to FIG. 2B, in the second image generation process, the control unit 10 makes the size of the characters included in the first image 40 the same as the size of the characters included in the second image. When the second image is generated, the number of items that can be displayed at one time in the display area 15A (hereinafter referred to as “the number of second items”) is calculated for the second image (step S31).

In this case, since the length L1 in the horizontal direction A of the display area 15A is twice the length L2 in the vertical direction B, the number of the second items is twice the number of the first items. Therefore, the control unit 10 calculates "8" as the number of the second item.

After calculating the number of the second item, the control unit 10 sets the length of the second image in the vertical direction B according to the maximum number of characters constituting each of the character strings included in the items 72A to 72J. (Step S32).

In this case, since the maximum number of characters constituting each of the character strings included in the items 72A to 72J is four, the control unit 10 sets the length of the second image in the vertical direction B to 15 pixels. Set the length to correspond to 4 characters of the size of. In this case, the length of the second image in the vertical direction B is set to be the same as the length L2 of the display area 15A in the vertical direction B.

After setting the length of the second image in the vertical direction B, the control unit 10 generates a second image based on the number of second items and the set length of the second image in the vertical direction B (step). S33).

Specifically, the control unit 10 first generates a plurality of items 72A to 72J to be included in the second image based on the address book data stored in the HDD 19, and generates the generated plurality of items 72A to 72J. , Distribute according to the second item number "8". In this case, the control unit 10 distributes the ten items 72A to 72J into the eight items 72A to 72H and the remaining two items 72I and 72J.

After the items are distributed, the control unit 10 receives the second image 70A in which the eight distributed items 72A to 72H are arranged along the horizontal direction A, and the second image 70B in which the items 72I and 72J are arranged along the horizontal direction A. And generate. The control unit 10 has a second so that the length of the second images 70A and 70B in the vertical direction B is the same as the set length, that is, the length L2 of the display area 15A in the vertical direction B. Images 70A and 70B are generated. Each of the generated second image 70A and second image 70B can be displayed in the display area 15A at a time. The control unit 10 combines the second image 70A and the second image 70B in this order to generate the combined image 73. The combined image 73 is stored in the HDD 19.

With reference to FIG. 2A again, when the combined image 73 is generated by the second image generation process, the control unit 10 scrolls the combined image 73 with respect to the display unit 15 in the display area 15A (step S19).

(2-1) When the scroll operation is not detected FIG. 8 is a diagram showing an example of the scrolling mode of the combined image. With reference to FIG. 8A, in step S18, the control unit 10 points upward, which is the direction of the flick operation, with respect to the display unit 15 according to the display speed V2 set according to the operation speed V1. And scroll the combined image 73.

At this time, the control unit 10 starts scrolling from the portion corresponding to the items 42A to 42D displayed in the display area 15A at the time when the flick operation is performed. That is, the control unit 10 starts scrolling from the second image 70A including the items 72A to 72D corresponding to the items 42A to 42D.

With reference to FIG. 8B, the control unit 10 finally causes the display unit 15 to display the second image 70B in the display area 15A by the scrolling. In this case, before the movement amount of the combined image 73 reaches the scroll amount set according to the display speed V2 or the distance from the first position to the second position, the vertical direction of the second image 70B is set in the display area 15A. The downward end of direction B is displayed. When the downward end portion of the vertical direction B of the second image 70B is displayed in the display area 15A, the control unit 10 ends the scrolling of the combined image 73.

The control unit 10 determines whether or not a scroll operation has been accepted while scrolling the combined image 73 (step S20). When the user confirms that the item 72J corresponding to the desired item 42J is displayed in the display area 15A, the user does not perform the flick operation again. Therefore, the scroll operation is not detected by the touch panel 16A while the combined image 73 is scrolling.

The control unit 10 determines that the scroll operation is not accepted during scrolling of the combined image 73 (NO in step S20), and has already been accepted in the display area 15A for the display unit 15 in the first image 40. The portion corresponding to the second image 70B displayed in the display area 15A at the end of scrolling of the combined image 73 performed based on the scroll operation in the vertical direction B is displayed (step S21).

In this case, the control unit 10 includes the items 42I and 42J corresponding to the items 72I and 72J included in the second image 70B in the first image 40 in the display area 15A with respect to the display unit 15. Is displayed. After displaying the first image 40, the control unit 10 returns to the process of step S12.

(2-2) When Scrolling Operation is Detected When the user performs a flicking operation on the second image 70A while scrolling the combined image 73, the control unit 10 determines that the scrolling operation has been accepted (step S20). YES), the processes of steps S13 and S14 are executed in the same manner as described above.

(2-2-1) When the operation speed is 1st speed or less When the user performs a slow flick operation, the control unit 10 determines that the operation speed V1 is 1st speed or less (step). NO in S14), the display unit 15 scrolls the first image 40 in the display area 15A (step S15).

At this time, the control unit 10 starts scrolling in the display area 15A from the portion of the first image 40 corresponding to the second image 70A displayed in the display area 15A at the time of accepting the flick operation. For example, the control unit 10 starts scrolling of the first image 40 from the portion including the items 42E to 42H corresponding to the latter half of the items 72A to 72H included in the second image 70A.

After scrolling the first image 40, the control unit 10 executes the processes after step S16 in the same manner as described above.

(2-2-2) When the operation speed exceeds the first speed When the user performs a quick flick operation, the control unit 10 determines that the operation speed V1 exceeds the first speed (step S14). YES), and it is determined whether or not the second image is generated (step S17).

In this case, the control unit 10 determines that the second image has been generated (YES in step S17), and causes the display unit 15 to continuously scroll the combined image 73 in the display area 15A (step S19). ). After scrolling the combined image 73, the control unit 10 executes the processes after step S20 in the same manner as described above.

According to the first embodiment, the control unit 10 causes the display unit 15 to display a part of the first image 40 in the display area 15A. When the control unit 10 receives the scroll operation in the vertical direction B via the touch panel 16A, the control unit 10 calculates the operation speed V1, and when the operation speed V1 is equal to or lower than the first speed, the first image 40 is displayed on the display unit 15. To scroll. When the operation speed V1 exceeds the first speed, the control unit 10 causes the display unit 15 to scroll the combined image 73 including the second images 70A and 70B.

In this way, when the operation speed V1 exceeds the first speed, that is, when the scroll speed is high, a character string composed of a plurality of characters arranged along the vertical direction B, which is the direction of the scroll operation, is displayed. The including combined image 73 will be scrolled. Therefore, the user can see the contents of the character string as compared with the case where the first image 40 including the character string composed of a plurality of characters arranged along the horizontal direction A different from the scroll operation direction is scrolled. It will be easier to follow with your eyes. Therefore, the user can easily understand the content of the character string contained in the scroll image even when the scroll speed is high.

Further, according to the first embodiment, when the control unit 10 does not accept a further scroll operation in the vertical direction B via the touch panel 16A while scrolling the combined image 73, the control unit 10 causes the display unit 15 to perform the scroll operation. The display area 15A corresponds to the second image 70B displayed in the display area 15A at the end of scrolling of the combined image 73 that has already been performed based on the accepted scroll operation in the vertical direction B in the first image 40. Display the part to be displayed.

In this way, when the scrolling of the combined image 73 is completed, the first image 40 is displayed in the display area 15A, so that the user is included in the first image 40 when the scrolling is not executed. You can check the contents of the character string.

Further, according to the first embodiment, when the control unit 10 receives a scroll operation in the vertical direction B via the touch panel 16A while scrolling the combined image 73, the control unit 10 calculates the operation speed V1 and calculates the operation speed V1. Is a portion corresponding to a part of the combined image 73 displayed in the display area 15A at the time when the scroll operation is accepted in the first image 40 in the display area 15A when is equal to or lower than the first speed. Therefore, the first image 40 is scrolled, and when the operation speed V1 exceeds the first speed, the scrolling of the combined image 73 is continued.

As a result, the user can switch the scrolling image to the first image 40 or the combined image 73 according to the speed of the scroll operation, which improves the convenience of the user.

Further, according to the first embodiment, in the display area 15A, the length L1 in the horizontal direction A is set to be larger than the length L2 in the vertical direction B. The control unit 10 causes the display unit 15 to display the combined image 73 so that the size of the characters included in the first image 40 and the size of the characters included in the combined image 73 are the same. ..

As a result, the combined image 73 in which the plurality of items 72A to 72J are arranged in the horizontal direction A is displayed as compared with the case where the first image 40 in which the plurality of items 42A to 42J are arranged in the vertical direction B is displayed. In this case, the number of items that can be displayed in the display area 15A at one time is larger. Therefore, by scrolling the combined image 73, the time until the item desired by the user is displayed can be further shortened as compared with the case where the first image 40 is scrolled.

(Second Embodiment)
The image forming apparatus 1 according to the second embodiment of the present invention is the same as the first embodiment except that the second image generation process is different and the scrolling mode of the second image is different. Hereinafter, the points different from the first embodiment will be described.

[motion]
Hereinafter, the operation of the image forming apparatus 1 according to the second embodiment will be described. The same operation as that of the first embodiment will not be repeatedly described.

[Second image generation process]
FIG. 9 is a flowchart showing another example of the second image generation process. With reference to FIG. 9, in the second image generation process according to the second embodiment, the control unit 10 calculates the number of second items in the same manner as the process in step S31 (step S41). In this case, the control unit 10 calculates "8" as the number of second items.

After calculating the number of the second items, when the control unit 10 scrolls the first image 40 by the display speed V2, all of the four items 42A to 42D currently displayed in the display area 15A are arranged next. The replacement time until the other four items 42E to 42H are completely replaced is calculated (step S42).

After calculating the replacement time, the control unit 10 determines the number of characters displayed in the display area 15A and the second image when the first image 40 is scrolled by the replacement time at the display speed V2 based on the number of second items. The length of the second image in the vertical direction B is set so as to be aligned with the maximum number of characters that can be contained in (step S43).

Here, the fact that the number of characters is uniform means that the difference in the number of characters is set to be equal to or less than a predetermined value. The predetermined value is not particularly limited as long as the number of characters is substantially the same. Here, "2" will be used as a predetermined value for description.

In this case, the control unit 10 first calculates "31", which is the total number of characters included in the items 42A to 42H, as the number of characters displayed in the display area 15A by the scrolling of the first image 40. Since the number of the second item, that is, the number of characters arranged in the horizontal direction A of the second image is "8" indicated by the number of the second item, the control unit 10 has the maximum number of characters that can be contained in the second image. Set the length of the vertical direction B of the second image to a length equivalent to four characters of the size of 15 pixels so that the difference from "31" is within "2". To do. As a result, the maximum number of characters that can be contained in the second image is "32".

After setting the length of the second image in the vertical direction B, the control unit 10 bases the number of the second items and the set length of the second image in the vertical direction B in the same manner as in the process of step S33. Then, the second images 70A and 70B are generated (step S44). At this time, the control unit 10 does not combine the second image 70A and the second image 70B. Each of the generated second images 70A and 70B is stored in the HDD 19.

With reference to FIG. 2A, when the second images 70A and 70B are generated by the second image generation process, the control unit 10 causes the display unit 15 to scroll the second images 70A and 70B in the display area 15A. (Step S19).

FIG. 10 is a diagram showing another example of the scrolling mode of the second image. With reference to FIG. 10, the control unit 10 repeatedly scrolls the second image 70A to the display unit 15 according to the display speed V2 from the time when the scroll operation in the vertical direction B is received until the replacement time elapses. Let me.

When the replacement time elapses after receiving the scroll operation in the vertical direction B, the control unit 10 causes the display unit 15 to scroll the second image 70B.

According to the second embodiment, the control unit 10 can include the number of characters displayed in the display area 15A and the second image when the first image 40 is scrolled by the replacement time at the display speed V2. The length of the second image 70A and the second image 70B in the vertical direction B is set so that the maximum number of characters is aligned. The control unit 10 also repeatedly scrolls the second image 70A from the time when the scroll operation is received until the replacement time elapses.

As a result, the amount of information displayed when the first image 40 is scrolled and the amount of information displayed when the second image 70A is scrolled can be made uniform. Further, since the second image 70A is repeatedly scrolled, the contents of the character string included in the second image 70A can be repeatedly confirmed. Therefore, the user can more easily understand the contents of the character string contained in the scroll image even when the scroll speed is high.

(Other variants)
In the first and second embodiments described above, the control unit 10 executes the display change program when receiving an instruction to select the address book function via the touch panel 16A, but the present invention has such an embodiment. It is not limited to the form. For example, the control unit 10 has a preset language set as a language for horizontal writing and vertical writing as a language to be displayed on the display unit 15 (hereinafter, referred to as "display language"), and has a touch panel. The display change program may be executed when the above instruction is received via 16A.

In this case, when the control unit 10 is set to a predetermined language as the display language to perform only horizontal writing and receives the above instruction via the touch panel 16A, the combined image 73 Or, the scrolling of the first image 40 is continued without scrolling the second images 70A and 70B.

The language predetermined as the language for horizontal writing and vertical writing is not particularly limited, and includes, for example, Japanese or Chinese. The language that is predetermined as a language that only writes horizontally is not particularly limited, and includes, for example, English or Greek.

As described above, when the characters included in the first image 40 are languages predetermined as the language for horizontal writing and vertical writing, the control unit 10 refers to the display unit 15 in the display area 15A. The combined image 73 or the second images 70A and 70B are scrolled. This makes it easier for the user to understand the contents of the character string contained in the scroll image.

Further, in the second embodiment, the scroll repeating unit is the second image 70A, but the present invention is not limited to such an embodiment. FIG. 11 is a diagram showing another example of the scrolling mode of the second image. With reference to FIG. 11, the scroll repeating unit may be for each item 72A to 72J. In this case, since the character string included in the item 72E is composed of three characters, it is compared with other items 72A to 72D and 72F to 72J including the character string composed of four characters. The number of repetitions increases.

The present invention is not limited to the configuration of the above embodiment, and various modifications can be made. For example, in the above-described embodiment, the color multifunction device is described as one embodiment of the display device according to the present invention, but this is only an example and may be a monochrome multifunction device, for example, a printer. It may be a copier, another image forming device such as a facsimile device, or a portable terminal device such as a smartphone.

Further, in the above-described embodiment, the configuration and processing shown by the above-described embodiment with reference to FIGS. 1 to 11 are merely one embodiment of the present invention, and the present invention is not intended to be limited to the configuration and processing.

1 Image forming device 10 Control unit 15 Display unit 15A Display area 16A Touch panel

Claims (6)

Display and
Touch panel and
With a control unit
The control unit causes the display unit to display a part of a first image including a plurality of items arranged along a predetermined first direction in a predetermined display area.
Each of the plurality of items included in the first image includes a character string composed of a plurality of characters arranged along a second direction orthogonal to the first direction.
The control unit
When the scroll operation in the first direction is received via the touch panel, the speed of the scroll operation is calculated.
When the calculated speed is equal to or lower than a predetermined first speed, the display unit scrolls the first image in the display area.
When the calculated speed exceeds a predetermined first speed, a second image including the plurality of items arranged along the second direction in the display area is displayed on the display unit. Scroll and
A display device in which each of the plurality of items included in the second image includes a character string composed of the plurality of characters arranged along the first direction. When the control unit does not accept further scrolling operations in the first direction via the touch panel during scrolling of the second image, the display unit is displayed in the display area in the first image. , A part corresponding to a part of the second image displayed in the display area at the end of scrolling of the second image, which has already been accepted based on the scroll operation in the first direction, is displayed. , The display device according to claim 1. The control unit
When the scroll operation in the first direction is received via the touch panel during the scrolling of the second image, the speed of the scroll operation is calculated.
When the calculated speed is equal to or lower than the first speed, the first displayed in the display area at the time when the scroll operation is accepted in the first image is displayed on the display unit. The first image is scrolled from the part corresponding to a part of the two images.
The display device according to claim 1 or 2, wherein when the calculated speed exceeds the first speed, scrolling of the second image is continued. In the display area, the length in the second direction is set to be larger than the length in the first direction.
The control unit refers to the display unit so that the size of the character included in the first image and the size of the character included in the second image are the same. The display device according to any one of claims 1 to 3, which displays an image. The control unit
A part of the plurality of items is displayed on the display area as a part of the first image in the display area.
For the second image, the number of items that can be displayed in the display area at one time is calculated.
When the first image is scrolled according to a display speed set according to the scroll speed, all of the part of the items displayed in the display area are arranged next to the other one. Calculate the replacement time until the items in the department are completely replaced,
Based on the calculated number of the items, the number of characters displayed in the display area when the first image is scrolled by the replacement time according to the display speed, and the characters that can be included in the second image. The length of the second image in the first direction is set so as to be aligned with the maximum number of.
The fourth aspect of the present invention, wherein when the second image is scrolled according to the display speed, the second image is repeatedly scrolled from the time when the scroll operation in the first direction is received until the replacement time elapses. Display device. The control unit
When the characters included in the first image are a language predetermined as a language for horizontal writing and vertical writing, the display unit scrolls the second image in the display area. ,
When the character included in the first image is a language predetermined as a language for horizontal writing only, the display unit does not scroll the second image in the display area. The display device according to any one of claims 1 to 5, wherein the scrolling of the first image is continued.